CN112340975A - Glass grading type toughening furnace - Google Patents
Glass grading type toughening furnace Download PDFInfo
- Publication number
- CN112340975A CN112340975A CN202011309297.1A CN202011309297A CN112340975A CN 112340975 A CN112340975 A CN 112340975A CN 202011309297 A CN202011309297 A CN 202011309297A CN 112340975 A CN112340975 A CN 112340975A
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- CN
- China
- Prior art keywords
- box
- air
- glass
- conveying line
- preheating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000010583 slow cooling Methods 0.000 claims abstract description 16
- 238000005496 tempering Methods 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a glass grading tempering furnace, which comprises a preheating box, a heating box, a rapid cooling box and a slow cooling box which are longitudinally and sequentially connected together, wherein a glass conveying line which is longitudinally and horizontally arranged penetrates through the preheating box, the heating box, the rapid cooling box and the slow cooling box; the further improvement lies in that: the device also comprises a blowing device; the blowing device comprises a fan, a plurality of air boxes and a plurality of air plates; the longitudinal section of the air plate is C-shaped; the upper part and the lower part of the glass conveying line in the preheating box and the heating box are respectively provided with a horizontal air box; the bottom of the air box above the glass conveying line is provided with a plurality of air plates which are horizontally arranged and have upward openings, and the air plates are fixedly connected to the bottom of the air box; the top of the air box below the glass conveying line is provided with a plurality of air plates which are horizontally arranged and have downward openings, and the air plates are fixedly connected to the top of the air box. The invention has high production efficiency and stable glass production quality.
Description
Technical Field
The invention relates to the technical field of glass manufacturing, in particular to a glass grading type toughening furnace.
Background
The glass tempering furnace is characterized in that a compression stress layer is formed on the surface of glass and a tension stress layer is formed inside the glass by a physical or chemical method; when the glass is acted by external force, the compressive stress layer can offset part of tensile stress, so that the glass is prevented from being broken, and the aim of improving the strength of the glass is fulfilled. Furthermore, the microcracks on the glass surface become finer under such compressive stress, and the strength of the glass is improved to some extent.
At present, the commonly adopted physical tempering method is to heat the glass to the vicinity of the softening point (about 650 ℃), at the moment, the glass can still keep the original shape, but the particles in the glass have certain migration capacity, the structure adjustment is carried out, so that the stress existing in the glass is quickly eliminated, then the tempered glass of the glass tempering furnace is subjected to blast shock cooling, after the temperature is balanced, the surface of the glass generates compressive stress, the inner layer generates tensile stress, namely the glass generates uniform and regularly distributed internal stress, the tensile strength of the glass as a brittle material is improved, and the bending resistance and the impact strength of the glass are improved. Meanwhile, due to the existence of uniform stress in the glass, once the glass is locally broken by the impact which can be borne by the glass and exceeds the strength of the glass, the glass is automatically exploded into small particles under the action of the internal stress, and the safety of the glass is improved. Accordingly, tempered glass may also be referred to as prestressed glass or safety glass.
The glass tempering furnace in the current market is basically a one-stage glass tempering furnace, namely, the procedures of preheating, heating, rapid cooling and slow cooling are completed in a box body, and the glass tempering furnace has the main defects that: the procedures of preheating, heating, quick cooling and slow cooling are finished in one box body, the production efficiency is low, and the quality is unstable.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the glass grading type toughening furnace which can obviously improve the production efficiency and has stable quality.
The invention achieves the technical aim through the following technical scheme.
A glass grading tempering furnace comprises a preheating box, a heating box, a rapid cooling box and a slow cooling box which are longitudinally connected together in sequence, wherein a glass conveying line which is longitudinally and horizontally arranged penetrates through the preheating box, the heating box, the rapid cooling box and the slow cooling box.
Preferably, the glass-staged tempering furnace further comprises an air blowing device; the blowing device comprises a fan, a plurality of air boxes and a plurality of air plates; the fan is arranged outside the preheating box, the heating box, the rapid cooling box and the slow cooling box; the air box is a cuboid component; the longitudinal section of the air plate is C-shaped to form an opening, and a plurality of first through holes are formed in the air plate; the upper part and the lower part of the glass conveying line in the preheating box and the heating box are respectively provided with a horizontal air box; an air outlet of the fan is communicated with the air box from the side surface of the air box; the bottom of the air box above the glass conveying line is provided with a plurality of air plates which are horizontally arranged and have upward openings, the air plates with the upward openings are fixedly connected to the bottom of the air box, and the bottom of the air box is provided with a plurality of second through holes communicated with the air plates with the upward openings; the top of the air box below the glass conveying line is provided with a plurality of air plates which are horizontally arranged and have downward openings, the air plates with downward openings are fixedly connected to the top of the air box, and the top of the air box is provided with a plurality of third through holes communicated with the air plates with downward openings.
Compared with the prior art, the invention has the following positive effects:
1. the invention comprises a preheating box, a heating box, a rapid cooling box and a slow cooling box which are longitudinally and sequentially connected together, wherein the preheating, the heating, the rapid cooling and the slow cooling are completed in four boxes passing by a longitudinal and horizontal glass conveying line in a grading way, the production efficiency is obviously improved, and the glass quality can be stabilized.
2. The upper and lower sides of the glass conveying line in the preheating box and the heating box are respectively provided with a blowing structure, and the upper and lower sides of the glass are blown, so that the glass keeps balance in the heating process, and the phenomenon of collapse of the glass in the heating process is avoided.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a sectional view taken along line a-a of fig. 1.
Fig. 4 is a cross-sectional view taken along line B-B of fig. 3.
Fig. 5 is an enlarged view of part i of fig. 4.
Detailed Description
The invention is further illustrated with reference to the following examples in accordance with the accompanying drawings.
The glass grading tempering furnace shown in the attached drawing comprises a preheating box 1, a heating box 2, a rapid cooling box 3, a slow cooling box 4 and a blowing device which are longitudinally connected together in sequence, wherein a glass conveying line 5 which is longitudinally and horizontally arranged penetrates through the preheating box 1, the heating box 2, the rapid cooling box 3 and the slow cooling box 4.
The blowing device comprises a fan 63, a plurality of air boxes 61 and a plurality of air plates 62; the fan 63 is arranged outside the preheating box 1, the heating box 2, the rapid cooling box 3 and the slow cooling box 4; the bellows 61 is a rectangular parallelepiped member; the longitudinal section of aerofoil 62 is the C type, forms the opening, is equipped with a plurality of first through-holes on the aerofoil 62.
The upper part and the lower part of the glass conveying line 5 in the preheating box 1 and the heating box 2 are respectively provided with an air box 61 which is horizontally arranged; an air outlet of the fan 63 is communicated with the air box 61 from the side surface of the air box 61; the bottom of the air box 61 above the glass conveying line 5 is provided with a plurality of air plates 62 which are horizontally arranged and have upward openings, the air plates 62 with the upward openings are fixedly connected to the bottom of the air box 61, and the bottom of the air box 61 is provided with a plurality of second through holes communicated with the air plates 62 with the upward openings; the top of the bellows 61 below the glass conveying line 5 is provided with a plurality of transverse air plates 62 with downward openings, the air plates 62 with downward openings are fixedly connected to the top of the bellows 61, and the top of the bellows 61 is provided with a plurality of third through holes communicated with the air plates 62 with downward openings.
When the glass tempering furnace is used, glass to be tempered is placed on the glass conveying line 5, enters the preheating box 1 to be preheated to about 300 ℃, then enters the heating box 2 to be heated to the temperature close to the softening point (about 650 ℃), then enters the rapid cooling box 3 to be rapidly cooled, and then enters the slow cooling box 4 to be slowly cooled, so that tempering is completed.
Claims (2)
1. The utility model provides a glass hierarchical formula tempering furnace which characterized in that: the glass conveying line comprises a preheating box (1), a heating box (2), a rapid cooling box (3) and a slow cooling box (4) which are longitudinally connected together in sequence, wherein a glass conveying line (5) which is longitudinally and horizontally arranged penetrates through the preheating box (1), the heating box (2), the rapid cooling box (3) and the slow cooling box (4).
2. A glass-staged tempering furnace as defined in claim 1, wherein: the glass grading type toughening furnace also comprises a blowing device; the blowing device comprises a fan (63), a plurality of air boxes (61) and a plurality of air plates (62); the fan (63) is arranged outside the preheating box (1), the heating box (2), the rapid cooling box (3) and the slow cooling box (4); the air box (61) is a cuboid-shaped component; the longitudinal section of the air plate (62) is C-shaped to form an opening, and a plurality of first through holes are formed in the air plate (62);
air boxes (61) which are horizontally arranged are respectively arranged above and below the glass conveying line (5) in the preheating box (1) and the heating box (2); an air outlet of the fan (63) is communicated with the air box (61) from the side surface of the air box (61); the bottom of the air box (61) above the glass conveying line (5) is provided with a plurality of air plates (62) which are horizontally arranged and have upward openings, the air plates (62) with the upward openings are fixedly connected to the bottom of the air box (61), and the bottom of the air box (61) is provided with a plurality of second through holes communicated with the air plates (62) with the upward openings; bellows (61) top of glass transfer chain (5) below is equipped with a plurality of horizontal flat, opening aerofoil (62) down, opening aerofoil (62) fixed connection down is at bellows (61) top, bellows (61) top is equipped with a plurality of third through holes intercommunication opening aerofoil (62) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309297.1A CN112340975A (en) | 2020-11-20 | 2020-11-20 | Glass grading type toughening furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309297.1A CN112340975A (en) | 2020-11-20 | 2020-11-20 | Glass grading type toughening furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112340975A true CN112340975A (en) | 2021-02-09 |
Family
ID=74364477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011309297.1A Pending CN112340975A (en) | 2020-11-20 | 2020-11-20 | Glass grading type toughening furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112340975A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746548A (en) * | 2017-01-13 | 2017-05-31 | 中国建材国际工程集团有限公司 | For the device and thin glass heating means of the heating of thin glass |
| CN109485241A (en) * | 2017-09-13 | 2019-03-19 | 安徽巨昌钢化玻璃有限公司 | A kind of energy-saving glass tempering furnace with heat-storage and cold-storage |
| CN214400240U (en) * | 2020-11-20 | 2021-10-15 | 江苏盛阳消防科技有限公司 | Glass grading type toughening furnace |
-
2020
- 2020-11-20 CN CN202011309297.1A patent/CN112340975A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746548A (en) * | 2017-01-13 | 2017-05-31 | 中国建材国际工程集团有限公司 | For the device and thin glass heating means of the heating of thin glass |
| CN109485241A (en) * | 2017-09-13 | 2019-03-19 | 安徽巨昌钢化玻璃有限公司 | A kind of energy-saving glass tempering furnace with heat-storage and cold-storage |
| CN214400240U (en) * | 2020-11-20 | 2021-10-15 | 江苏盛阳消防科技有限公司 | Glass grading type toughening furnace |
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